Stainless steel ball valve capable of adjusting flow velocity

Abstract

The utility model relates to the technical field of ball valves, and provides a stainless steel ball valve capable of adjusting flow velocity, which comprises a pipeline, a flange fixedly connected to the right end of the pipeline, a sealing assembly mounted in the pipeline, a fixed cylinder fixedly connected to the upper end of the pipeline, a box fixedly connected to the upper end of the fixed cylinder, and a sealing assembly mounted in the box. A switch assembly is installed in the box body, a fixing assembly is fixedly connected to the top end of the box body, a rotary knob is rotated to enable a rotating rod to rotate, the rotating rod enables a driven rod to rotate through transmission between a driving gear and a driven gear, the driven rod drives a ball core to rotate through a clamping block, and the passing efficiency of water flow is changed through rotation of the ball core. A large transmission ratio can be achieved by designing the number of teeth of the double gears, the moving speed of the ball valve can be reduced, and mechanical damage caused by too fast moving of the ball valve is avoided. By means of the technical scheme, the problem that in the prior art, the ball valve is damaged due to the fact that the moving speed of the ball core is too high is solved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically to a stainless steel ball valve with adjustable flow rate. Background Technology

[0002] A ball valve is a valve driven by a valve stem that rotates around the ball valve axis. It is generally used for fluid regulation and control. When the fluid flow rate inside the ball valve is too fast, the flow rate can be adjusted by a flow rate regulating mechanism, which generally consists of a ball valve, a connecting flange, and a knob.

[0003] When manually opening and closing a ball valve, a greater amount of force is often used to achieve the opening and closing of the valve more quickly. However, this increases the movement speed of the ball core, and its excessive movement can easily lead to mechanical damage, reduce its service life, and require more effort. Utility Model Content

[0004] This invention proposes a stainless steel ball valve with adjustable flow rate, which solves the problem in related technologies that the ball valve is damaged due to excessive ball core movement speed.

[0005] The technical solution of this utility model is as follows: A stainless steel ball valve with adjustable flow rate includes a pipe, a flange is fixedly connected to the right end of the pipe, and a sealing component is installed inside the pipe;

[0006] A fixed cylinder is fixedly connected to the upper end of the pipe, and a box is fixedly connected to the upper end of the fixed cylinder. A switch assembly is installed inside the box, and a fixing assembly is fixedly connected to the top of the box.

[0007] Preferably, the switch assembly includes a rotating rod, which is rotatably connected to the bottom wall of the inner cavity of the housing. The upper end of the rotating rod extends to the top of the housing and is fixedly connected to a knob. A drive gear is fixedly connected to the rotating rod.

[0008] Preferably, a driven rod is rotatably connected to the top wall of the inner cavity of the box, a driven gear is fixedly connected to the driven rod, the driving gear and the driven gear are meshed, and the lower end of the driven gear extends into the interior of the pipe and is fixedly connected to a locking block.

[0009] Preferably, a positioning cylinder is fixedly connected to the bottom end of the pipe, a lower bearing is fixedly installed inside the positioning cylinder, a fixing rod is installed inside the lower bearing, the upper end of the fixing rod extends into the inside of the pipe and is fixedly connected to a ball core, a positioning groove is opened at the upper end of the ball core, and the locking block is located inside the positioning groove.

[0010] Preferably, the fixing component includes a fixing plate, the top of the housing is fixedly connected to the fixing plate, the lower end of the knob is fixedly connected to the positioning plate, the fixing plate is provided with a screw, and the right end of the screw passes through the positioning plate and is threadedly connected to a nut.

[0011] Preferably, the sealing assembly includes a positioning ring, which is fixedly installed inside the pipe. A spring is fixedly connected inside the positioning ring, and a sealing ring is fixedly connected to the right end of the spring. The inside of the sealing ring is in contact with the ball core.

[0012] Preferably, a fixed ring is fixedly connected inside the fixed cylinder, a piston is rotatably connected to the driven rod inside the fixed cylinder, a second spring is fixedly connected to the bottom end of the fixed ring, the bottom end of the second spring contacts the top end of the piston, and an upper bearing is fixedly connected inside the fixed cylinder above the fixed ring, the upper bearing being installed inside the driven rod outside.

[0013] Preferably, there are multiple positioning rings, sealing rings, and springs, and these multiple positioning rings, sealing rings, and springs are symmetrical about the center line of the main view of the ball core.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] 1. This utility model is equipped with a switch assembly. By adjusting the transmission ratio between the driving gear and the driven gear, the movement speed of the ball valve can be slowed down, avoiding mechanical damage caused by excessive movement and extending its service life. The sealing assembly ensures good sealing performance of the device, preventing leakage during use and facilitating user convenience. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the sealing assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the sealing ring structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the switch assembly structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the fixing component structure of this utility model.

[0023] In the diagram: 1. Pipe; 2. Flange; 3. Fixed cylinder; 4. Housing; 5. Sealing assembly; 51. Positioning ring; 52. Sealing ring; 53. Spring 1; 54. Fixed ring; 55. Piston; 56. Spring 2; 6. Switch assembly; 61. Driven rod; 62. Driven gear; 63. Rotating rod; 64. Driving gear; 65. Knob; 7. Fixing assembly; 71. Fixing plate; 72. Positioning plate; 73. Screw; 74. Nut; 8. Locking block; 9. Ball core; 10. Positioning groove; 11. Positioning cylinder; 12. Fixed rod; 13. Lower bearing; 14. Upper bearing. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Example 1

[0026] like Figures 1-6 As shown, this embodiment proposes an adjustable flow rate stainless steel ball valve, including a pipe 1, a flange 2 fixedly connected to the right end of the pipe 1, a sealing component 5 installed inside the pipe 1; a fixed cylinder 3, a fixed cylinder 3 fixedly connected to the upper end of the pipe 1, a housing 4 fixedly connected to the upper end of the fixed cylinder 3, a switch component 6 installed inside the housing 4, a fixed component 7 fixedly connected to the top of the housing 4, a positioning cylinder 11 fixedly connected to the bottom end of the pipe 1, a lower bearing 13 fixedly installed inside the positioning cylinder 11, a fixing rod 12 installed inside the lower bearing 13, the upper end of the fixing rod 12 extends into the interior of the pipe 1 and is fixedly connected to a ball core 9, a positioning groove 10 is opened at the upper end of the ball core 9, and a locking block 8 is located inside the positioning groove 10.

[0027] Furthermore, the switch assembly 6 includes a rotating rod 63, which is rotatably connected to the bottom wall of the inner cavity of the housing 4. The upper end of the rotating rod 63 extends to the top of the housing 4 and is fixedly connected to a knob 65. A drive gear 64 is fixedly connected to the rotating rod 63, and a driven rod 61 is rotatably connected to the top wall of the inner cavity of the housing 4. A driven gear 62 is fixedly connected to the driven rod 61. The drive gear 64 and the driven gear 62 are meshed. The lower end of the driven gear 62 extends into the interior of the pipe 1 and is fixedly connected to a locking block 8. Rotating the knob 65 causes the rotating rod 63 to rotate. The rotating rod 63 causes the driven rod 61 to rotate through the transmission between the drive gear 64 and the driven gear 62. The driven rod 61 drives the rotation of the ball core 9 through the locking block 8. The rotation of the ball core 9 changes the flow efficiency of the water. By designing the number of teeth of the double gear, a larger transmission ratio can be achieved, making the rotation of the ball core 9 more stable and slowing down the movement speed of the ball core 9 to avoid mechanical damage caused by its excessive movement.

[0028] Furthermore, the fixing component 7 includes a fixing plate 71, which is fixedly connected to the top of the housing 4. A positioning plate 72 is fixedly connected to the lower end of the knob 65. A screw 73 is provided inside the fixing plate 71. The right end of the screw 73 passes through the positioning plate 72 and is threadedly connected to a nut 74. The screw 73 and the nut 74 fix the positions of the fixing plate 71 and the positioning plate 72, so that the knob 65 cannot be rotated, preventing water flow from impacting the ball core 9 and changing the state of the ball core 9.

[0029] In this embodiment, when the water flow state needs to be adjusted, the switch assembly 6 operates, and the knob 65 is rotated to make the rotating rod 63 rotate. The rotating rod 63 rotates the driven rod 61 through the transmission between the driving gear 64 and the driven gear 62. The driven rod 61 drives the rotation of the ball core 9 through the locking block 8. The rotation of the ball core 9 changes the water flow efficiency. By designing the number of teeth of the double gear, a larger transmission ratio can be achieved, which can slow down the movement speed of the ball core 9 and avoid mechanical damage caused by its excessive movement. It can convert the high speed of the input shaft into the low speed of the output shaft, meet the needs of low-speed, high-torque equipment, and make the rotation of the ball core 9 more stable, so as to facilitate more precise adjustment of the water flow rate. After the flow rate is determined, the fixing assembly 7 operates, and the positions of the fixing plate 71 and the positioning plate 72 are fixed by the screw 73 and the nut 74, so that the knob 65 cannot be rotated, preventing the water flow from impacting the ball core 9 and changing the state of the ball core 9, thereby changing the water flow rate.

[0030] Example 2

[0031] like Figures 1-4As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes a sealing assembly 5 including a positioning ring 51. The positioning ring 51 is fixedly installed inside the pipe 1. A spring 53 is fixedly connected inside the positioning ring 51. A sealing ring 52 is fixedly connected to the right end of the spring 53. The inside of the sealing ring 52 is in contact with the ball core 9. A fixing ring 54 is fixedly connected inside the fixing cylinder 3. A piston 55 is rotatably connected to the driven rod 61 and located inside the fixing cylinder 3. A spring 56 is fixedly connected to the bottom end of the fixing ring 54. The bottom end of the spring 56 is in contact with the top end of the piston 55. An upper bearing 14 is fixedly connected inside the fixing cylinder 3 and located above the fixing ring 54. The upper bearing 14 is installed inside the upper bearing 14. Outside the driven rod 61, there are several positioning rings 51, sealing rings 52, and springs 53. These positioning rings 51, sealing rings 52, and springs 53 are symmetrical about the center line of the ball core 9 in the main view. With the positioning ring 51 as the base, spring 53 pushes the sealing ring 52 into contact with the ball core 9, so that the sealing ring 52 and the ball core 9 cooperate to seal the pipe, preventing water from entering above the ball core 9. When the positioning ring 51 or sealing ring 52 is damaged, the water flow pushes the piston 55 upward, and the spring 56 is compressed, generating a downward thrust. The double seal can better protect the switch assembly 6 from the influence of water flow, and there will be no leakage during use, which is beneficial to people's use.

[0032] In this embodiment, when the pipeline is in normal use, the sealing assembly 5 works. With the positioning ring 51 as the base, the spring 53 pushes the sealing ring 52 to contact the ball core 9, so that the sealing ring 52 and the ball core 9 cooperate to seal the pipeline, preventing water from entering above the ball core 9. When the positioning ring 51 or the sealing ring 52 is damaged, the water flow pushes the piston 55 upward, and the spring 56 is compressed to generate a downward thrust. The double seal can better protect the switch assembly 6 from the influence of water flow, and there will be no leakage during use, which is beneficial to people's use.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stainless steel ball valve with adjustable flow rate, characterized in that, Includes a pipe (1), the right end of which is fixedly connected to a flange (2), and a sealing assembly (5) is installed inside the pipe (1); A fixed cylinder (3) is fixedly connected to the upper end of the pipe (1), and a box (4) is fixedly connected to the upper end of the fixed cylinder (3). A switch assembly (6) is installed inside the box (4), and a fixed assembly (7) is fixedly connected to the top of the box (4).

2. The stainless steel ball valve with adjustable flow rate according to claim 1, characterized in that, The switch assembly (6) includes a rotating rod (63), which is rotatably connected to the bottom wall of the inner cavity of the housing (4). The upper end of the rotating rod (63) extends to the top of the housing (4) and is fixedly connected to a knob (65). A drive gear (64) is fixedly connected to the rotating rod (63).

3. The stainless steel ball valve with adjustable flow rate according to claim 2, characterized in that, The inner cavity top wall of the box (4) is rotatably connected to a driven rod (61), and a driven gear (62) is fixedly connected to the driven rod (61). The driving gear (64) and the driven gear (62) are meshed. The lower end of the driven gear (62) extends into the interior of the pipe (1) and is fixedly connected to a locking block (8).

4. The stainless steel ball valve with adjustable flow rate according to claim 3, characterized in that, The bottom end of the pipe (1) is fixedly connected to a positioning cylinder (11), and a lower bearing (13) is fixedly installed inside the positioning cylinder (11). A fixing rod (12) is installed inside the lower bearing (13). The upper end of the fixing rod (12) extends into the inside of the pipe (1) and is fixedly connected to a ball core (9). A positioning groove (10) is opened at the upper end of the ball core (9), and the locking block (8) is located inside the positioning groove (10).

5. The stainless steel ball valve with adjustable flow rate according to claim 2, characterized in that, The fixing component (7) includes a fixing plate (71), the top of the box (4) is fixedly connected to the fixing plate (71), the lower end of the knob (65) is fixedly connected to the positioning plate (72), the fixing plate (71) is provided with a screw (73), the right end of the screw (73) passes through the positioning plate (72) and is threadedly connected to a nut (74).

6. The stainless steel ball valve with adjustable flow rate according to claim 4, characterized in that, The sealing assembly (5) includes a positioning ring (51), which is fixedly installed inside the pipe (1). A spring (53) is fixedly connected inside the positioning ring (51), and a sealing ring (52) is fixedly connected to the right end of the spring (53). The inside of the sealing ring (52) is in contact with the ball core (9).

7. The stainless steel ball valve with adjustable flow rate according to claim 3, characterized in that, A fixed ring (54) is fixedly connected inside the fixed cylinder (3). A piston (55) is rotatably connected to the driven rod (61) inside the fixed cylinder (3). A second spring (56) is fixedly connected to the bottom end of the fixed ring (54). The bottom end of the second spring (56) is in contact with the top end of the piston (55). An upper bearing (14) is fixedly connected inside the fixed cylinder (3) and above the fixed ring (54). The upper bearing (14) is installed inside the driven rod (61) outside.

8. The stainless steel ball valve with adjustable flow rate according to claim 6, characterized in that, There are several of the positioning ring (51), sealing ring (52) and spring one (53), and multiple of the positioning ring (51), sealing ring (52) and spring one (53) are symmetrical about the center line of the main view of the ball core (9).

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